MUX/DEMUX Circuits
MUX/DEMUX Circuits
(OP)
Need MUX circuits to handel 40 to 50 inputs.Carried over RS232 wiring. To be DEMUXed with the same number outputs.
Inputs not data string only two states (0) or (1).End results to control LED's and relays corresponding to input positions.
Inputs not data string only two states (0) or (1).End results to control LED's and relays corresponding to input positions.





RE: MUX/DEMUX Circuits
RE: MUX/DEMUX Circuits
<nbucska@pcperipherals.com>
RE: MUX/DEMUX Circuits
RE: MUX/DEMUX Circuits
I would use RVKBASIC to write the software. But that would be my approch.
RE: MUX/DEMUX Circuits
RE: MUX/DEMUX Circuits
RE: MUX/DEMUX Circuits
RE: MUX/DEMUX Circuits
RE: MUX/DEMUX Circuits
You wire the data pins to your relays, or relay drivers. I would rob one of them to communicate with the chip. Lets say there are 23 I/O pins, wire 22, and one will be the RS232 input. Then write a program to monitor that pin in RVKBASIC (www.bastoc.com). Then send 3 bytes on the buss (you can use less). 11O, chip 1, pin 1 ON, or 23F chip 2, pin 3 OFF.
On the BASCOM question, try RVKBASIC, it is free and I have used it with great sucess.